Complex day at SumUp

Commit to cashback before genuine spending separates from reward abuse

Published Oct 30, 2026

You’re the growth / marketing strategist. Your team is in the room.

The setting

extends its payments work to individual people with , a mobile wallet app with a virtual Mastercard for paying friends, settling bills and paying businesses.

Tomorrow's cashback promises outlast the evidence used to fund them.

Growth protects the repeat-spender target while Finance protects the remaining cash from uncertain reward liabilities.

Who you’d be doing this for

“I paid twice this week because the offer said I'd get cashback. Now I'm checking every purchase to see whether it counts.”

Thomas Stewart · Café customer and personal account user · a character in this brief

Joined through a merchant promotion and is deciding whether to keep using the account for everyday spending.

What is at stake

A cashback campaign has drawn 18,000 sign-ups, but repeat spending may include reward abuse. You must weigh tomorrow's binding offers against a growth target that Finance will not fund on optimistic assumptions.

Why it isn’t already fixed

Every obvious fix costs something else. That’s the part you’d have to decide.

  • repeat-spender volume vs cash exposure
  • simple eligibility vs resistance to abuse
  • merchant distribution vs attribution certainty
  • early commitment vs mature customer evidence

Why SumUp

Merchant placements and direct advertising feed the same consumer activation funnel but carry different attribution gaps and reward exposure.

Written with these in mind

Consumer fintech growth strategistsExperiment-driven acquisition specialistsCommercially minded lifecycle practitioners

Not your kind of problem? 38 more at SumUp, or browse every organization.

Where the organization context comes fromThe postings this brief was written from, and the reporting read before it.

The organization context comes from public information. The situation and characters are written for the brief.

Job postings it was written from

Public descriptions of the work at SumUp. They are listed as sources, not as openings. The lines under a posting are its own words, where it meets this brief.

  • CRM Manager- Consumer (opens in a new tab)
    • The Consumer CRM team turns every new sign-up into an active, engaged customer by designing the journeys that guide people from onboarding through to their first transaction and beyond.
    • Write clear, on-brand campaign copy for every channel, from push notifications to email, supported by AI agents built for the job
  • Head of Consumer Growth (opens in a new tab)
    • Take commercial ownership of growth investment, including channel mix, acquisition cost, incentives, promotions, attribution and forecasting.
    • By connecting consumers and merchants within the same ecosystem, we can change the economics of payments.
  • Growth Marketing Manager, Credit Products (opens in a new tab)
    • Define and execute online acquisition strategies across web and app, including Google, Meta and TikTok.
    • Own acquisition, conversion, activation, retention and cross-sell initiatives across paid, organic and lifecycle channels.
  • Brand Manager - Marketing Effectiveness (opens in a new tab)
    • Run SumUp's consumer and B2B brand trackers across six markets, keeping the data accurate and the targets realistic
  • Senior Marketing Manager - B2C (opens in a new tab)
    • Work closely with teams across Hardware, CRM, and other business lines to get consumer acquisition placements shipped through channels you don't directly own
    • Build and maintain reporting on merchant-to-consumer acquisition performance, using it to inform channel-mix decisions and prove cost-per-customer against direct advertising

Reporting read before this brief was written

The pieces closest to the situation in this brief.

This is the setup. The work is inside.

Running it puts you in the room: the full situation and its constraints, stakeholders who push back in their own words, and the decisions that are yours to make. What you produce becomes a Day One Plan — work you can show someone instead of describing.

Other live briefs connected to this one, and what connects them.

Similar problems at other organizations

Like this one, each of these is about betting growth on an outside partner or launch.

The same setting, from another role

Each is set around SumUp’s SumUp Consumer (SumUp Pay), written for a different role. They’re separate briefs, not the same scenario.

Other problems with a similar purpose

In each of these, as in this one, the aim is to make a bold growth decision that still holds up to scrutiny from the people it affects.